export default class FilteredSearchTokenKeys {
  constructor(tokenKeys = [], alternativeTokenKeys = [], conditions = []) {
    this.tokenKeys = tokenKeys;
    this.alternativeTokenKeys = alternativeTokenKeys;
    this.conditions = conditions;

    this.tokenKeysWithAlternative = this.tokenKeys.concat(this.alternativeTokenKeys);
  }

  get() {
    return this.tokenKeys;
  }

  getKeys() {
    return this.tokenKeys.map(i => i.key);
  }

  getAlternatives() {
    return this.alternativeTokenKeys;
  }

  getConditions() {
    return this.conditions;
  }

  searchByKey(key) {
    return this.tokenKeys.find(tokenKey => tokenKey.key === key) || null;
  }

  searchBySymbol(symbol) {
    return this.tokenKeys.find(tokenKey => tokenKey.symbol === symbol) || null;
  }

  searchByKeyParam(keyParam) {
    return this.tokenKeysWithAlternative.find((tokenKey) => {
      let tokenKeyParam = tokenKey.key;

      // Replace hyphen with underscore to compare keyParam with tokenKeyParam
      // e.g. 'my-reaction' => 'my_reaction'
      tokenKeyParam = tokenKeyParam.replace('-', '_');

      if (tokenKey.param) {
        tokenKeyParam += `_${tokenKey.param}`;
      }

      return keyParam === tokenKeyParam;
    }) || null;
  }

  searchByConditionUrl(url) {
    return this.conditions.find(condition => condition.url === url) || null;
  }

  searchByConditionKeyValue(key, value) {
    return this.conditions
      .find(condition => condition.tokenKey === key && condition.value === value) || null;
  }
}
